10 Smartphones with the Longest Battery Life
HTC One X Plus (AT&T)
The HTC One X Plus improves on the HTC One X by swapping the 1,800 mAh battery in the latter with a 2,100 mAh unit. This upgrade produced 7 hours and 19 minutes of battery life in our tests, which is a 1:20 minute improvement over the older original. Add in quad-core power and you have a winner.